Lubricating apparatus



Aug 7 ,1928. 3,679,731

H. J. MURPHY LUBRI CAT ING APPARATUS Filed March 14, 1922 Patented Aug. 7, 1928.

UNITED" STATES HOWARD .1. MURPHY, or READING, MASSACHUSETTS, 'assrenon, BY imam ASSIGN PATENT "OFFICE- 1' MENTS, TO THE B ASSICK MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A.

CORPORATION OF DELAWARE.

' nunmca'rme APPARATUS.

Application filed March 14, 1922. Serial no. 548,849.

expellin device illustrated in Fig. '1, show-. l ubricant-reeeiving element in eleva-- ing the tion;

Fig. 3 is a section on the line 3-3 of Fig.

2, showing the relative position of the parts prior to the coupling operation; I v

Fig. 4 is a section on the same line as Fig. 3, but showing the relative position of the parts pursuant to'the coupling'operation;

Fig. 5 includes an end and a side elevation of a preferred form of coupling sleeve; 7

Fig. 6 shows a preferred form of connecting' sleeve for use within the coupling sleeve; Fig. 7 shows a preferred form of retainer ring for the connecting sleeve;

Fig. 8 includes an end and a side nevi tion of apreferred form of sealing part;

Fig. 9 shows a valve part; and

Fig. 10 is a view, partly in section, on the same line as ig. 2 but showing some of the cooperating arts in elevation and in the relative position occupied prior to the coupling operation,

Referring to the drawings, which show a preferred form of one embodiment of my invention, I have shown lubricant-expelling means which may include a barrel 11 provided with a rear head 12, into which is threaded a stem 13 carrying the usual piston or plunger for expelling the grease from the barrel. At the discharge end of thebarrel, I have shown a front head 14 carrying coupling and valve means for cooperation with the lubricant-receiving element -15, herein shown as a nipple provided with lateral projections 16. The preferred form of coupling illustrated includes a coupling sleeve 17 carried within an outer'part 18 of the head 14' and 'containingwithin it a con- It is among the necting sleeve 19. The couplin sleeve 17 I is apertured at 20 to receive the ead of the lubricant-receiving nipple and to provide fianges 21 to underlie the projections. on'

said nipple when turned relative thereto. The connecting part 19 is mounted for turningmovement within the coupling sleeve 1.7 and is apertured at 22 to receive and embrace the sides of the projections on the nipple. The preferred form of coupling also pre sents a sealing part 24 reciprocable within 7 the nozzle or coupling sleeve 17 by coo eratmg pin and inclined slot means, the pins 25' being preferably carried by the sealing part 24, as illustrated, and movable within inclined slots 26, 26in the cou ling sleeve.

- In the preferred form of my invention illustrated, the sealing part 24 is centrally apertured at 27 to permit passage of lubricant therethrough, bein transversely slotted at 28 at its rear end an having thereagainst, a valve part 29 (Figs. 2 and 9) having apertures adaptedv to be turned into registeringor non-registering position relative to the slot 28. Relative turning movement between i the sealing part 24 and the valve part 29 is i effected by mechanism providing deferred opening of the valve after the cou ling is completed and insuring closure of t e valve prior to the uncouplin preferred form of my invention illustrated, this deferred action is produced by clutch operation. In the means which may take the form, as illustrated, of the clutch ball 30 of slightly greater diameter than the thickness of the adjacent portion of the coupling sleeve 17 and earned in an opening through said coupling sleeve. Cooperating indentations are provided in the part 18 surrounding the coupling sleeve and in the sealing part 24 therein. Until completion of the coupling operation, the ball clutch 30 occupies the position shown in Fig. 3, partly within the surrounding wall 18.and partly 'within the coupling sleeve so that rotation between these parts cannot be effected. As the coupling sleeve andouterpart are rotated together as by turning the grease gun barrel in clockwise direction, the sealing part 24 ca'nnot rotate therewith because a squared end 40 thereon is entered within the hole 22 of the connection part 19, the part 19 being held against rotation by fitting the head of coupling sleeve 17 relative to the sealing part a coupling sleeve 17.

24 in a clockwise direction will move the sealing part 24 toward the lubricant-reoe1ving end of the nipple 15 to press the sealing washer all thereagainst, this endwise movement being eilected'by the screws 25 cooperating with the inclined slots .26. During this movement, the depression 42 in the sealing part will come opposite the clutch ball 30, and the ball will pass therein to the position illustrated in Fig.4, thereby permitting rotation of the outer wall 18 with the head 14 while permitting the coupling 17 toremain in fixed relation to the sealing part 24. The valve part 29 is secured to the outer wall 18, and, as this is turned relative to'the sealing part 24;, thecooperating ports therein will be brought into register with the slot 28 in the sealing part 2 1, thus opening the valve. The extent of this movement is limited by the screw 50 carried by the outer wall 18 and engaging a slot 51 iin the The connecting sleeve 19 is held in 1135 forward position bythe resilient ring 53 (Figs. 2 and 7 so that there is no opportunity for grit to get in between the end thereof and the interior faces of the flanges 21. Leakage around the valve part 29 and sealing part24 is opposed by an apertured' cup washer 54- secured to the-valve part 29.

Assuming the nipple 15 to be entered in the nozzle prior to rotation thereof, the parts will occupy the relative position shown in Fig. 10. As the gun barrel is rotated to the right, it will turn with it the front head It and outer wall 18 of the nozzle. The coupling sleeve 17 will also turn with it, as it is held in fixed relation to the outer art 17 by the ball 30,- occupying the interloc 'ng position illustrated in Fig. 3. During this time, the sealin part 24 cannot turn relative to the nipp e because held by the connecting. sleeve '19. Therefore the sealing part 24 will bemoved' forward to the left,

as viewed in Figs. 10 and 2, until the position shown in Fig. 2 is reached with considerable pressure of the sealing washer 41 against the head of the nipple 15; By this time the clutch ball 30 will reach the position shown in Fig. 4, permitting turning movement of the outer part 18 without corresponding movement of the coupling sleeve 17, and such turning movement will be effected by further turning of the barrel 11 until the ports in the valve part29 come in register with the slot 28 in the sealing art 24, at which time the screw50 will ave reached the end of its slot and the coupling and valve opening will have been completed.

Assuming now that the desired amount of lubricant has been expelled, the barrel l1 nevevai' v maybe turned to the left, The first part of this movement cannot etfect relative rotation between the coupling sleeve 17 and the sealing part 24 because the ball-clutch 30 opposes any movement between them. Therefore, the'outer wall 18 will. turn relative to the sealing part 24 and bring the ports in the valve part 29 out ofregister with the slot 28 in the sealing part 24 until the screw 50 has reached the opposite end of the slot 51, at which time the valve will be entirely counterclockwise direction, as viewed from its rear end, will cause the coupling sleeve 17 to turn so that the nipple may be with drawn from the aperture 20, the sealing part 24 being retracted during this uncoupling movement to the position shown in Fig. 10, thus'completing thecycle of operations. it will be noted that during the uncoupling operation, the sealing partial is drawn back against the pressure of the lubricant behind it, and that the valve part 29 reciprocates with the sealing part 2 1 during the coupling and uncoupling operations.

While I have shown and described a preferred form of one embodiment of my invention, it will be understood that changes involving omission, substitution, alteration and reversal of parts, and even changes in the mode of operation, may be made with-' out departing from the sco e of my invention, which is best defined in the following claims.

Claims:

1. Lubricating apparatus of the class described com rising, in combination, a coupling part or connection with and disconnection from a nipple, an aligned valve, and shiftable clutch means for locking some of the parts of said coupling against relative rotation to insure initial completion of the coupling operation, said clutch means thereafter shiftable to unlock the parts of said coupling to permit opening of said valve.

2. Lubricating apparatus of-the class described, comprising in combination, a coupling part for connection with and discon- DBCtlOIl from a lubricanbreceiving nipple, said coupling including a nozzle sleeve, a sealing part, a valve part and shiftable clutch means, said clutch means operable to lock some of said parts: during coupling to pre vent operation of said valve and other of said parts to prevent uncoupling during valve opening and closing operation.

3. In lubricating apparatus of the class described, a lubricant compressor havin a coupling connected to" its discharge en a valve for controlling flow of lubricant toand ward said coupling, said valve aligned with I operatively interposed betweensaidcoupling scribed including a coupling and a deferred operation valve controlling flow of lubricant toward said coupling, said valve and coupling operable by similar manipulative movement, and clutch means between said coupling and valve, said clutch means in-' cluding a ball and a pluralit of ball receiving sockets co-operating to e ect operation of said coupling before permitting operation of said valve.

5nLubricating apparatus of the class described including a couplingand a deferred operation valve controlling'flow of lubricant toward said coupling, said valve and coupling operable by similar progressive manipulative movement, and clutch means between said coupling and valve, said clutch means including a ball and a plurality'of ball receiving sockets co-operating to eifect operation of said coupling before permitting operation of said valve. i

6. Lubricating apparatus including a lu bricant-expelling gun having a barrel containing lubricant and carrying .a coupling including a sleevepresenting portions to underlie lateral projections on a lubricant-receiving nipple when coupled to said nipple, said coupling also including a sealing part pressed tightly against the end of the nipple during coupling operation, said sleeve rotatable with said barrel to effect coupling thereof to the nipple, and said barrel rotatable without rotation of said sleeve to efi'ect o ening and closing of a cooperating valve a ter said sealing part has been pressed against said nipple.

7. Lubricating apparatus including a lubricantexpelling gun having a barrel containing lubricant and carrying a coupling including a sleeve presenting portions to underlie lateral projections on a lubricantreceiving nipple when coupled to said nipple, said coupling also includmg a sealing part pressed unyieldingly against the end of the nipple when coupled, said sleeve rotatable with the barrel'to efiect coupling thereof to said nipple, and said barrel rotatable with-, out rotation of said sleeve after coupling is completed to eii'ect opening of. a cooperating valve without axial movement of the barrel relative to said sleeve.

8. A lubricant-expelling gun rigidly and directly carrying a coupling including a sleeve presenting an opening at its exposed end adapted to fit over pro ections on acooperating lubricant-receiving part, said sleeve presenting adjacent said end overhanging portions for engagement beneath saidprojections, and means forcing said sleeve to turn with the body of said expelling uncoupling of. sea

' uncoupling of sm device during the coupling operation and permitting independent turning of sand body to operate valve mechanism interposed bev tween said body and said overhanging portions. I

f 9. Lubricating apparatus includlnga lubricant-ex elling gun directly carry ng a. coupling 'or engagement with a lubricantreceiving nipple and a rotary valve controlling discharge of lubricant, said ex elling gun also presenting coordinating shiftable clutch means insuring proper sequence of operationof said coupling and of said valve by insuring, when coupling, 0 eration of said coupling prior to opening 0 said valve,

and by insuring, when uncoupling, closure of said valve prior to uncoupling, said" coupling and valve being operable automatically in sequence by a single continuous movement of said gun.

10. Lubricating apparatus including a lubricant-expelling device presentinga nozzle providing means for engagement beneath projections provided on a lubricant-receiv mg nipple, a sealing part movable toward and from the nip le during cou ling and nozzle with th and a sleeve engaging said nipple and said sealing part to oppose turning of said sealing part relative to the nipple during the coupling operation.

e nipple 11. Lubricating apparatus including a li'lbricant-expelling device presenting a nozzle,

providing means for engagement beneath projections provided by a lubricant receiving nipple, a sealing part movable toward and from the'nip is during coupling and nozzle with the nipple and a sleeve engaging the nipple and said sealing part tov oppose turnin of said sealing part relative to the nipp e during the coupling 0 eration, said sleeve slidably engagm sai sealing part. 1

12. ubricating apparatus including a lubricantexpelling device presenting a nozzle providing means for' engagement [beneath projections provided by a ubricant-receivmg nipple, a sealing part movable toward and from the nip le during coupling and uncoupling of em nozzle with the nipple and a sleeve engaging the nipple andsaid sealingpart to oppose turning of said sealing art relative to the nipple during the coup ing operation, said sleeve having a noncircular aperture extending'completely therethrough and engaging laterally the nipple and the adjacent end of saidsealing part.-

13. Lubricating apparatus including a lubricant-expelling devicepresenting a nozzle providing means for engagement beneath projecting means provided by a lubricant receiving ni ple, a sealing part movable toward and rom the nipple during coupling and uncoupling of said nozzle with the nipple and a sleeve engaging the nipple and said sealing part to oppose turning of said sealing part relative to the nipple during the coupling operation, said sleeve slidably engaging said sealing part and having a non circular aperture tberethrough of constant cross-section,

14. Lubricating apparatus of the class described including a-coupling having an unyielding torque-pressed sealing element nonrotatable relative to a lubricant-receiving nipple, valve means, and coordinated clutch means controlling operation of said valve I means and said. coupling.

sealing direction.

15. Lubricating apparatus of the class described including a coupling having an unyielding tor ue-pressed sealin element nonrotatable re ative to a lubricant-receiving nipple, valve means, and coordinated clutch means controlling operation of said valve means and said coupling while permitting operation of said torque-pressed sealing element at all times when under torque in having a coupling adjacent its discharge end for engagement with a lubricant-receiving nipple presentii'ig lateral projections, said coupling aresenting a sealing part and a sleeve si ably engaging said sealing part and the lateral projections on the nipple to oppose relative turning therebetween, and resilient means holding said sleeve in forward position toward the-discharge end of said can ling.

18. Lu ricating apparatus of the class described including coupling \means for en gagement with a lubricant-receiving ni ple an presenting a sealing part presse tig ll/lg against the nipple ivhen coupling is eifecte valve means, and coordinated clutch means including ashiftable part for controlling operation of said valve means and sai coupling.

19, Lubricating apparatus of the class de-' scribed including a lubricant delivering comressor having at its discharge end a quic detachable coupling for connection. by movement of said compressor relative to a lubricant receiving element, said coupling providing a valve, and clutch means positively interlocked to oppose opening of said valve until completion of the coupling op-- oration I I 20., Lubricating apparatus including a\ lubricant delivering compressor having at its discharge end a coupllng for connection by movement of said compressor "relative to a lubricant receiving element, said coupling providing a valve, and clutch means positively inter-locked to oppose opening of said valve until completion of the coupling operation, said clutch means shiftable upon completion of the coupling operation, thereby to positively prevent uncoupling of said delivering compressor from said receiving element until completion of the valve closing operation.

21. Lubricating apparatus comprising a lubricant expelling gun carrying a coupling part having an axial opening to receive a polygonal. portion on a lubricant receiving nipple and chambered interiorly to present flanges to underlie the project-ions presented by the polygonal portion when the latter is entered therein and turned relative thereto, a co-operating sealing part, a valve, a valve operating means and clutch means precluding opening of said valve until the polygonal flanges and sealing part are turned relative to one another a predetermined distance and until the coupling and sealing operation are both completed.

22, Lubricating apparatus of the class described comprising a lubricant expelling compressor having a quick detachable coupling means and a valve means connected to its discharge end, and correlated but nonsynchronously operated clutch mechanism interconnecting said means, said clutch mechanism including apparatus for first engaging one of said means and thereafter engaging the other off-said means.

23. Lubricating apparatus including a lubricant delivering compressor having a coupling and sealing mechanism for connection With and disconnect-ion from a lubricant receiving nipple, a valve, and coordinated I locking means carried by said coupling and sealing mechanism'for preventing relative rotation between the sealing part and coupling part during valve opening or closing operatlon.

24-. Lubricating apparatus including a lubricant delivering compressor having a cou pling and, sealing mechanism for connection with and disconnection from a lubricant receiving nipple, a valve, and coordinated clutch means carried by said coupling and sealing mechanism for preventing valve opening operation during sealing and coupling' operation and unsealing and uncoupling operation.

25. Lubricating apparatus including a lubricant delivering compressor presenting a coupling'part for connection with 'and dis-,-

connection from beneath projections on a Inbricant receiving nip lo, a sealing part, a: .third part mounted 'or'turning. movement,

relative to said coupling part and said sealing part, and valve means the entire movement of which is actuated by relative turning movement between said coupling art and said third part subsequent to comp etion of 5 the coupling and sealing operation.

26. Lubricating apparatus including a lubricant delivering compressor having a nozzle sleeve, a coupling sleeve, a sealing part, a valve and clutch means operatively 10 interposed between said nozzle sleeve, coupling sleeve andsealing-part initially to lock two of said parts. against relative rotation during engagement and disengagement with a lubricant receiving nipple and thereafter to lock the third of said arts to one of the other of said parts toe ect valve opening or closing.

In testimony whereof, I have signed my name to this specification.

HOWARD J. MURPHY. 

